Shaving device



Aug. 6,1940. M, G, N JR 2,210,110

sHAvING DEVICE Filed July 27, 1936 2 Sheets- Sheet 1 x 5J- 44 myINVENTOR.

Wm W

ATTORNEY.

Allg- 1940. M. s. ANDIS, JR 2 10 SHAVING DEVICE Filed July 27, 1936 2Sheets-Sheet 2 Patented Aug. 6, 1940 I UNITED STATES PATENT OFFICE-SHAVING DEVICE Matthew G. Andis, Jr., Racine, Wis. Application July '27,1936, Serial No. 92,714

4 Claims. (01. 30-43) This invention relates to improvements inshavminimizing wear on the cutter as the latter ing devices. vibrates.

The invention relates more particularly to shav- Other objects of theinvention are to provide ing devices of the type having a reciprocatinga shaving device wherein the parts are relatively cutter, driven by anelectric motor or other suitsimple to manufacture; wherein the head maybe 5 able means, and movable beneath a slotted face readily connected toor removed from the handle; engaging part, whereby the device may beused and wherein the cutter blade may be easily rewithout soap or otherbeard softening agent to moved for replaceme Other P p e greatlyfacilitate the shaving operation. With the above or other objects inview, the In prior devices of this type, the shaving head inventi n onists f t pr v d shavin d 10 is provided with a slotted face engagingportion vice and all its parts and combinations as set and withcontinuous side walls depending thereforth in the claims, and allequivalents thereof. from. With this arrangement, the slots through Inthe accompa y drawings illustrating prewhich the hair is guided, beginat the edges of ferred embodiments of the invention, in which 16 theshaving head, and due to the fact that said the same reference numeralsdesignate the same edges are integral with the sides, there must beparts n a o the Views: sufficient thickness of metal to connect thesides F 1 is a P View Of t p d Shaving with the top of the head. Extrathickness at device, parts being broken y and wn i the beginning of theguiding slots, however, is Section; I undesirable as the closeness ofthe shaving de- Fig. 2 is a longitudinal Sect o V through 0 pends uponthe thinness of the metal in which e s g head, on an exaggerated Scaleshowthe guiding slots are disposed, particularly at ing the drivingconnection with the cutter 1e beginning of said slots. member;

It is therefore an object of the present inven- Fig. 3 is a plan view ofthe shaving e p t tion to provide a shaving device wherein the head othe e engaging ember being broken away 25 is composed of a separate toppart which is not to w t cutter there-below; integral with the sides,whereby the free slotted 4 is n end View of the cutter head and edges ofsaid top part may be of extreme thin- Supporting block; ness so that thecutter operating below said slotted 518 a Perspective w Of the faceengaging edges will effectively cut the hair close to the skin. member ae; 80 A further object of the invention is to provide Fig. 6 is aperspective view of the cutter mema device as above described whereinthe sides of her alone;

the head form guards and are provided with slots '7 is an end View of amodified form of open at the top foreffectively straightening outshaving head wherein no side guards are emand guiding hair into theslots of the face enp y 35 gaging portion, there being a space betweenthe 3 s a V ew O o e side of a modified form of ends of the side slotsand the beginning of the ter h ad, a s an a a d s ale; top slots, whichspace is of such width that there Fig. 9 is a sectional view taken onthe line 99 will be no danger of nipping the face or of the of H82 hairspringing back from its straightened out 10 is a end V ew of themodified form of 0 condition before it is cut. cutter head;

A further object of the invention is to provide Fig. 11 is a top viewthereof; a shaving device in which the face engaging por- Fig. 12 is atop V ew with the top fac engaging tion of the shaving head has beveledand prefermember removed; ably slightly concave surfaces to fit thecontour of F 13 is a p ew O t e h ad With the face the face. engagingmember and cutter member removed,

A still further object of the invention is to proand with part brokenaway; vide a shaving device having novel means for Fig. 14 is aperspective view of the face engaging yieldingly urging thereciprocating cutter into member alone; close contact with the innerside of the slotted Fig. 15 is a perspective view of the cutter mem- 50face engaging member; her alone; and

A more specific object of the invention is to Fig. 16 is a sectionalview taken on the line provide in a device as above described, membersl6l6 of Flg. 8. located between said yielding means and the cut-Referring more particularly to the drawings, ter for minimizing noiseand vibration and for Figs. 1 to 6 inclusive, the numeral l6 designates55 to better fit the contour of the face.

a hollow handle portion formed of suitable material and forming ahousing for a driving device suchas an electric motor IT. The drivingshaft l8 of the motor projects rotatably through a. partition l9 andinto a recessed outer end portion 20, said recessed outer end portionhaving spring clips 2| disposed at opposite sides thereof, which clipsare of slightly curved formation.

Referring now more particularly to the shaving head proper, the numeral22 designates a supporting block, preferably of metal which block hasposts 23 projecting from the upper surface thereof, there being recesses24 in the upper surface of the block surrounding said posts. Asubstantially U-shaped member 25 is secured by screws or the like 26 tothe block'22 and the bottom of said U-shaped member is provided withcircular openings 21 of substantially the same size as and whichregister with the recesses 24 of the block 22 surrounding the posts 23.r

The sides 28 of the U-shaped portion 25 form guard members for theshaving head and said sides have their free edge portions slightlynookshaped as at 29 for the purpose of lifting and straightening outhair on the face. The said edge portions of the guards or side members28 are formed with a plurality of relatively narrow slots 30 (see Figs.1 and 3), which slots define teeth 3|, the latter being preferablysomewhat pointed toward the top.

A cutter member or blade 32 (see Fig. 6) has its opposite edge portionsslotted as at 33 to define a plurality of teeth 34, the edges 35 ofwhich are sharpened for cutting purposes. A block 36 .depends from thebottom of said cutting blade and said block is formed with a slot 31. Oneach side of the block the cutting member has an elongated aperture 38through.which the posts 23 of the supporting block 22 extend, as shownin Fig. 2. The driving shaft l8 of the motor ex tends rotatably into abore 39 of the block 22 and is there provided with an. eccentricallypositioned extension shaft 40 of, smaller diameter. The end of theeccentric 40 fits into the slot or recess 3'! of the block 36 on thecutter blade. As a result of this arrangement, when the shaft I8 isrotated by the electric motor, the eccentric 40 causes rapidreciprocation of the cutter member 32.

A fixed blade or face engaging member 4| (see Fig. 5) has counter-sunkopenings 42 therein through which screws 43 may extend which screws arethreadable into the ends of the posts 23 as shown in Fig. 2, to securethe reciprocating cutter 32 and the face engaging member 4| in position.

Surrounding the posts 23 and having their ends seated in the recesses24, are coil springs 44 which springs tend to yieldingly urge the cuttermember into close contact with the inner side of the fixed face engagingpart 4|. Washers 45 of linen, fiber, or suitable material, which are ofgreater diameter than the narrow portion of the recesses 38 of thecutter member 32, are positioned between the outer ends of. the coilsprings 44- and the cutter member to prevent wear upon the cutter memberand to minimize noise and vibration during operation of the device.

The face engaging member or fixed blade 4| preferably has its uppersurface tapered toward each edge as at 46, said tapered surfaces beingalso preferably slightly concave as shown in Fig.

As a result of the taper, the edge portions are of extreme thinness asat 41 and said edges are proing member.

straightened out by the side guards and by the hooks 29 thereon, passesthrough the slots 30 of the side guards and into the space 49 and thendirectly into the slots 48 of the fixed face engag- The space 49 cannotbe so wide that the straightened out hair has an opportunity to springback from its straightened out condition before it enters the slots 48.The space also must be of such width that there is no danger of nippingthe face.- When the hair enters the slots 48 of. the fixed cuttermember, it is immediately severed by shearing action due to the factthat the cutter member 32 is reciprocating rapidly beneath the fixedcutter member.

The supporting block 22 for the cutter head has opposite end portionsformed with beveled corners 50 and also with substantially V-shapedrecesses 5|. As a result of this arrangement, the head may be snappedinto position in the recess 20 of the outer end of the handle, the outerends of the spring clips 2| ultimately engaging in the slots 5| toremovably hold the cutter head in position.

From the above it is apparent that due to applicants particularconstruction, the face engaging portion 4| does not have to be integralwith the side guards 2B. Thus, the free edges of the face engagingmember 4| may be made of extreme thinness so that a very close shave isobtained. Where the face engaging portion of the head is integral withthe sides, there must be sufficient thickness of stock to connect theface engaging portion to the sides, and as a result, no portion of theface engaging member can be made as thick as applicants edges 41.

In applicants construction, wherein the movable cutting member is guidedby the supporting posts 23 and wherein the face engaging member issecured to said same supporting posts, the device is very simple tomanufacture and assemble. It is also very easy to remove thereciprocating cutter member whenever desired by merely taking out thescrews 43.

It is to be noted that the ends of the shaving head are open so thatsevered hair which drops beneath the cutter member can be readily blownout of the head.

In Fig. 7, the identical construction is illustrated wherein theU-shaped member 25 carrying the side guards 28 is omitted, the guards28, being not absolutely essential, and the form shown in Fig. 7 beingpractical for a cheaper construction.

Referring now more particularly to Figs. 8 to inclusive it will be seenthat this head is provided with a supporting block 52 which has its endsprovided with beveled corners 53 and with notches 54 for cooperationwith the spring clips 2| of the holder. The supporting block is formedwith upwardly projecting end walls 55, see Fig. 10, having a steppedupper corner portion 56. Adjacent the inner side of each wall 55 within.the head is a block 51, see Figs. 9 and 13, which blocks are spacedapart to provide a center depression 58 there-between. A spring memberhas a rear wall portion 59 extending along the rear wall of the head forapproximately the full length thereii, (see Figs. 9 and 13) and spaced,inwardly projecting spring portions 60 resting on top of the portions 51and projecting forwardly therefrom, the forward portions of the springsbeing reversely bent to'provide spring ridges 6| which are substantiallyV-shaped in cross section; A retaining member 62 having spaced endportions 3 fits over the spring portions 59 and 60 to hold the same inposition, as shown in Figs. 12 and 13.

A cutter member 64 having a rearward extension 65 and spaced cuttingteeth 66 along its forward edge, is adapted to be driven by theeccentrio portion of the motor driving shaft I8 which eccentric portionis cooperable with the recess 66 in a block 61 carried by the lower sideof the cutter. On each side of the block 61 the lower face of the cutteris provided with an elongated substantially V-shaped recess 68 cooperable with the V-shaped portion SI of the yielding means, as shown inFig. 9. The cutter is positioned loosely on the head as shown; in Fig.12 with a rearward extension 85 projecting into the space between theparts 83, there being suiiicient space to permit reciprocating move"-ment of the cutter, with the engagement between the spring parts 6| andthe slots 68 of the cutter forming a guide for reciprocating movement..

The fixed blade portion or face eng in member 69 (see Fig. 14) has itsupper surface tapered as at 10 to provide a free edge portion II ofextreme thinness as in the principal form of the invention, and saidfree edge portion is provided with a series of minute slots 12, abovethe teeth 06 of the cutter member. The face engaging portion is securedin position by bolts 13 extending through apertures 14 of the faceengaging member 69, through apertures 15 in the spring retaining member62, through apertures in the' spring parts and into the parts 51 of thesupporting block. p

The side guard 16 is secured to the side of the supporting block bybolts 11 and the free upper edge of the guard is formed with a series ofslots 18 which register with the slots of the. face engaging member 69as shown in Fig. 11, there being a narrow space 19 between'the twoseries of slots. v f

It is apparent that in this form of the invention, the cutter member isnot only guided by the V-shaped ridges ti on the spring member, but isalso yieldingly urged by said ridges into close engagement with theinner side of thefac'e en-,- gaging member 69. Shaving is done inthesame manner with this device as with the device shown in the principalform of the invention except that there is only one shaving edge, thehair being straightenedout by the free edge of the guard II and guidedbythe slots 18 of the guard into the slots I2 of the top face engagingmember where the hair is severed by the recprocating movement of thecutter member there-below.

Although only a few forms of the. inventionv havebeen shown anddescribed, it is obvious that various changes and modifications may bemade without departing from the spirit of the inven-' of the posts astion, and all of such changes are contemplated as may come within thescope of the claims.

What I claim is:

1. In a shaving device, a hollow shaving head having a slotted topportion, guiding means projecting upwardly within the hollow portion ofsaid head, a slotted reciprocable cutter member having an elongatedaperture therein through which said guiding means extends, yieldingmeans for urging said cutter into close contact with the inner side ofthe top portion of the head, and a fibre washer between said yieldingmeans and said cutter for minimizing noise, vibration and wear duringmovement of the cutter. 2. In a shaving device, a shaving headcomprising a supporting member, a pair of spaced spring members securedto said supporting member and each having a hook-shaped outer end formedwith a ridge which is'yielding, a reciprocably movable cutter memberhaving a groove cooperable with said yielding ridges to guide the cutterin its reciprocal movement, a slotted face engaging member positionedover the cutter member, said yielding ridges serving to urge the cuttermember into close contact with the face engaging member, and a blockdepending from said cuttermember between said spaced yielding ridges,said block being recessed for the reception of driving means.

. 3. In a shaving device, a shaving head comprising a supporting member,a pair of spaced spring 'members each having a yielding ridge positionednear opposite ends of said supporting member, a common spring retainingvmembersecured over portions of said two spring members to hold the samein position, said retaining mem ber having a center recess, areciprocably movable cutter having a groove cooperable with saidyielding ridges to guide the cutter in its reciprocal movement; saidcutter having a rearward extension movable in the recess of the springretaining member, and a face engaging member positioned over the cutterand secured adjacent one edge to said spring retaining member, the otheredge of said face engaging member being slotted and of extreme thinness,said yielding ridges the inner side of the face engaging member.

4. Ina shaving devices, supportingstructure, posts anchoredat-theirlower ends in said supportingjstructure'andextending outwardlythereserving to urge the cutter into close, contact with the outer'endsof said posts,- a reciprocable cutter slotted to, cooperate withthe'slots ofthe fixed blade and positioned below the latter, said cutterhaving apertures therein. through which the supporting posts extend, andsaid apertures being of cate, and coil springs surrounding said'postsbetween the supporting structure and the cutter a. human.

such size "with respect to the thickness toperm'it said cutter torecipro- Y oo

